Improvement in window-blind operators



E. A. HOLBROOK & A. E. YORK. Window-Blind Operator.

No. 217,873. Pat ented July 29,1879.

Fey. 1',

UNITED STATES PATENT OFFICE.

EDWIN A. HOLBROOK AND ANSON E. YORK, OF WATERTOWN, NEW YORK.

IMPROVEMENT IN WINDOW-BLIND' OPERATORS.

Specification forming part of Letters Patent No. 217,873, dated July 29,1879; application filed April 1, 1879.

To all whom it may concern.-

Be it known that we, EDWIN A. HoLBRooK and ANsoN E. YORK, both ofWatertown, Jefferson county, and State of New York, haveinvented a newand useful Improvement in Devices for Operating Window-Blinds, whichimprovement is fully set forth in the following specification.

()ur invention relates to means whereby window-blinds can be opened,shut, and fastened without opening the window. To accomplish this resultone of the hinges is geared with a shaft extending through the wall orcasin g, to which the hinges are secured, so that by turning the shaftby means of a suitable handle the blinds may be opened or closed.

This invention consists in a sliding shaft and handle of peculiarconstruction, and in combination thereof with a rosette with simplenotches adapted to engage with a lug on the handle.

In the drawings, Figure 1 is a front view of the blind closed, and Fig.2 a section showin g the construction of the operating mechan- 1sm.

A is the window-casing or wall of the house, to which the blind, bymeans of the hinges O D, is fastened, the lower of which is providedwith gears (1' (1 the latter being formed in one piece with that part ofthe lower hinge which is attached to the blind.

E is the sliding shaft, which is free to slide, but not to turn, in thegear or pinion d,- F, the handle, and G the rosette.

The shaft E and handle F are wrought or cast in one piece, with apeculiar crook or upset, 0, in the shaft, near the handle, so that arosette, G, with simple notches around the rim, can be put to its placeon the shaft adjoining the handle by tipping it at acute angles with theshaft, and when at its place turning at right angles with the shaft.

When the rosette is fastened to the windowcasing A, sufficient play isgiven for the shaft to slide inward to lock the blind by means of a lug,f, which is a part of the handle, entering into the simple notches inthe rim of the rosette. By pulling the shaft out it is unlocked, and isthen free to be rotated to move the blind.

The bearing of the rosette coming in contact with the upset ein theshaft prevents the shaft from pulling out any farther than necessary forthe above purposes.

The shaft slides in the pinion or gear 01 in the outside geared hinge,instead of being fastened thereto; hence no drilling of holes orriveting is necessary to fasten the two together. There is no rivetingon of the handle or pin to hold the rosette, and no rivets are requiredin any part of the device; but when the rosette G is screwed to thecasing the whole is secured in its place.

The whole expense is simply that of castiron, adding the cost of finishon the rosette and handle.

The blind is easily operated; the fastening simple and perfect, so thatwind does not affect it; and it can be keyed to the side of the house,so that there is no rattling.

Having described our invention, and the manner in which the same is ormay be carried into effect, what we claim, and desire to secure byLetters Patent, is

1. In a shutter-worker arranged to operate the shutter by means of ahinge provided with gears, the handle and sliding shaft in one piece,the said shaft being formed with a crook or upset at a suitable distancefrom the handle, in combination with means for limitin g the outwardmovement of the shaft by said upset or crook, substantially asdescribed.

2. The handle provided with a lug thereon and sliding shaft formed witha crook or upset, in combination with, a hinge, with gears, and with arosette having simple notches, substantially as described, whereby theblind may be moved and fastened in any position, as above set forth.

In testimony whereof we have signed this specification in the presenceof two subscribing witnesses.

EDWIN A.-HOLBROOK. ANSON E. YORK. Witnesses:

WATSON M. ROGERS, D. J. OUMmes.

